Self leveling ladder system

Abstract

A self-leveling ladder system constituting both a straight or a step ladder system which includes hydraulic cylinders which are attached to the bottom of each of the ladder frames. The hydraulic cylinders are interconnected by hydraulic pressure lines and filled with a hydraulic fluid. The hydraulic pressure lines each include an off and on valve. In an on position of the valve, the hydraulic fluid freely flows through the pressure lines and the hydraulic cylinders. When the ladder, straight or step, is placed on an uneven ground and the foot pads on the bottom of the ladder have reached their proper position with respect to a vertical position of the ladder, the ladder will attain a stable position when the valve is placed into an off position.

1 . A self-leveling ladder system including a first two sided ladder frame, said frame having at least two bottom ground contacting pads, A hydraulic cylinder is attached to a bottom of each of said two sided ladder frame, a hydraulic pressure conveyance is attached between each of said hydraulic cylinders, an off and on valve is connected into said hydraulic conveyance including a filler and bleed cap, whereby, when said off and on valve is an open position, hydraulic fluid will flow through said hydraulic pressure tube and into or out of said respective cylinders depending on where said contact pads make contact with an uneven ground, a closure of said off and on valve will stabilize said ladder in a desired vertical position. 
   
   
       2 . The self-leveling ladder system of  claim 1 , wherein said hydraulic conveyance is the frame of said first two sided ladder frame constituting hollow frame members that are connected to said hydraulic cylinders. 
   
   
       3 . The self-leveling ladder system of  claim 1  including a second two-sided frame being attached to a said first frame member at a top thereof. 
   
   
       4 . The self-leveling ladder system of  claim 3  wherein said first and second frame members are attached to each other by way of a hinge to thereby form a step ladder. 
   
   
       5 . The self-leveling ladder system of  claim 4  wherein said second frame members have attached thereto and at a bottom thereof, each a hydraulic cylinder to be included in the self-leveling ladder system, whereby said step ladder will self-level all four bottom pads of said ladder system simultaneously. 
   
   
       6 . The self-leveling ladder system of  claim 1  including conventional step ladder frames, having four bottoms pads, a hydraulic cylinder is attached to each of the four bottom pads, a first hydraulic pressure line is connected between two cylinders on one of the ladders frames and a second hydraulic pressure line is attached between two cylinders of another of the ladder frames, an off and on valve is placed within each of said first and said second hydraulic pressure lines to obtain a substantial vertical position of said step ladder when said valves are in an off positions. 
   
   
       7 . The self-leveling ladder system of  claim 1 , wherein said hydraulic cylinder has at least two threaded bolts attached to an outer surface thereof to be attached to each of said ladder frames at a bottom thereof by way of a nut and bolt arrangement.